Each unit comes with a number of Abilities and/or Perks, which serve to differentiate, balance, and help fulfill its role.
As a rule of thumb, Abilities carry some sort of effect, which affects the unit's World Map behaviour (the Ability may still affect its combat mechanics, e.g. Flying). Perks normally affect only the combat abilities of a unit.
Unit can fly, which negates all terrain penalties. A Flying unit cannot be attacked by non-flying units in melee, although they do counterattack.
List of units that are Flying
Unit was summoned and belongs to another world.
List of units that are Summoned
Unit suffers 25% additional damage from all Cold attacks.
List of units that are Cold Vulnerable
Unit is immune to Mind and Death effects, poison, critical hits, Gaze attacks and Positive and Negative energy. They cannot be raised from the dead.
List of units that are Constructs
Unit's attacks ignore armor (are more likely to hit).
List of units that are Ethereal
Unit receives 15 less damage from all Fire attacks.
List of units that are Fire Resistant
Unit is a living creature or creatures. It is healed by Positive Energy and damaged by Negative Energy.
List of units that are Living
Unit receives 2 less damage from all Mundane attacks.
List of units that are Mundane Resistant